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Title:

Comparison of Factors Affecting Work Zone Crash Severity Between Nighttime and Daytime

Accession Number:

01587555

Record Type:

Component

Abstract:

Identification of factors associated with crashes in highway work zones is essential in order to establish safe, efficient traffic flow through improved work zones. According to FHWA, 87,606 crashes (1.6% of total vehicle crashes) occurred in work zones in 2010; 436 of those crashes were fatal, killing 576 people. Analysis of data published by the Kansas Department of Transportation (KDOT) showed an increase in crashes in Kansas work zones from the years 2009 to 2012. According to KDOT fact sheets, 1,781 crashes occurred in work zones in 2012. The primary objectives of this study were to identify factors that contribute to higher injury severity of crashes in work zones and to compare the characteristics nighttime and daytime work zone crashes using Kansas crash data from 2010 to 2013. Ordered probit model was used to model crash severity for nighttime crashes and daytime crashes. Driver-related, environmental-related, and road-related variables were considered in the models. Model results showed that various driver aspects and crash locations were associated with crashes resulting in severe injuries. For examples, crash location was found to be significantly associated with crash severity only during daytime and work zone location was found significantly associated with crash severity only during nighttime. Whereas, safety equipment use was found to be significantly associated with reduced crash severities regardless of the time of the crash. Conclusions were drawn and stated by comparing and contrasting the findings from nighttime and daytime crash severity models.

Supplemental Notes:

This paper was sponsored by TRB committee ANB20 Standing Committee on Safety Data, Analysis and Evaluation.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-0018

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Dias, Ishani
Dissanayake, Sunanda

Pagination:

12p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Web

Features:

Figures; References (17) ; Tables

Geographic Terms:

Kansas

Subject Areas:

Highways; Safety and Human Factors; I81: Accident Statistics; I82: Accidents and Transport Infrastructure; I84: Personal Injuries

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-0018

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 4:16PM